Seiko Cal. 6399 - 742

The 6399-742 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6399 caliber with 31j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-7d2a4e6349a6]

Also known as: Sea Horse

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

35mm

Case Thickness

13.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

White

Jewels

31j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1989

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